18888759

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{433}}^1$

素因数の和:607

約数の個数: 24

約数和(自身を含む): 28300272

約数和(自身を除く): 9411513

約数列:

[1, 3, 9, 37, 111, 131, 333, 393, 433, 1179, 1299, 3897, 4847, 14541, 16021, 43623, 48063, 56723, 144189, 170169, 510507, 2098751, 6296253, 18888759]

約数ペア:

[(1, 18888759), (3, 6296253), (9, 2098751), (37, 510507), (111, 170169), (131, 144189), (333, 56723), (393, 48063), (433, 43623), (1179, 16021), (1299, 14541), (3897, 4847)]